Designed specifically for pocket-auto pistols, the ArmaLaser operates on Touch Sensor Technology- utilizing human touch conductivity. Simply put, just stick your finger in the trigger guard and the laser turns on; remove your finger and it turns off in 12 seconds. Features a 635nm 5mW laser that is windage and elevation adjustable. Includes owner's manual, batteries, ArmaLaser brace, and all necessary hardware. The laser's design also breaks up your pistols outline for pocket carry.